Search results for "casein gene"

showing 4 items of 4 documents

Genetic variability at αs2-casein gene in Girgentana dairy goat breed

2014

Casein genes are highly polymorphic and the high degree of variability has qualitative and quantitative effects on milk composition thereby affecting chemical, physical and technological properties of goat milk. The aim of this work was to evaluate the genetic polymorphisms of the αs2-casein (CSN1S2) gene in the endangered Girgentana dairy goat breed in order to assess the genotypes distribution, as it is known genotype influences technological and nutritional milk properties. The study was performed on 207 sample of Girgentana goat breed, analysed with different PCR protocols. The most frequent alleles was A (0.722), followed by F (0.225), C (0.051) and E (0.002) while B, D and 0 alleles w…

αs2-casein gene Genetic polymorphisms Girgentana goat Milk production040301 veterinary sciencesCSN1S2 Genetic polymorphisms Girgentana goat Milk production0402 animal and dairy science04 agricultural and veterinary sciencesBiology040201 dairy & animal scienceBreedGirgentana goat breed0403 veterinary scienceSettore AGR/17 - Zootecnica Generale E Miglioramento GeneticoAnimal scienceCaseinGenotypeHigh fatAnimal Science and ZoologyGenetic variabilitylcsh:Animal cultureAlleleGenelcsh:SF1-1100Italian Journal of Animal Science
researchProduct

Population genetic structure and milk production traits in Girgentana goat breed

2017

The aim of this work was to evaluate the genetic status of the Girgentana goat, an endangered breed from Sicily (Italy), using microsatellite markers. Furthermore, as the main purpose of the Girgentana breed is milk production, quantitative milk traits were investigated, including fatty acid profile. Molecular data from CSN1S1, CSN2, CSN1S2, and CSN3 casein genes were also used to infer haplotypes. A total of 264 individuals were collected. Samples of Maltese (n = 41) and Derivata di Siria (n = 33) goat breeds were also used to understand the genetic relationship among breeds. Test-day records for milk production were collected to determine daily milk yield, fat, protein, casein, lactose, a…

0301 basic medicinePopulationBiologyGenetic correlationSettore AGR/17 - Zootecnica Generale E Miglioramento Genetico03 medical and health scienceschemistry.chemical_compoundAnimal scienceCaseinGenetic variabilityLactoseeducationeducation.field_of_studymilk yield and gross composition.business.industrymicrosatellite marker0402 animal and dairy sciencefood and beveragescasein genes; microsatellite markers; milk yield and gross composition.; Food Science; Animal Science and Zoology04 agricultural and veterinary sciences040201 dairy & animal scienceBreedBiotechnologycasein gene030104 developmental biologyGenetic distancechemistryAnimal Science and ZoologybusinessSomatic cell countFood ScienceAnimal Production Science
researchProduct

Genetic characterization of the Mascaruna goat, a Sicilian autochthonous population, using molecular markers

2013

The aim of this work was to characterize a Sicilian autochthonous goat population using microsatellite markers and genetic polymorphisms at the casein genes. In order to investigate the genetic structure of the Mascaruna goat, a total of 60 (20 Girgentana, 20 mixed populations, and 20 Mascaruna) individuals were analyzed, using a panel of 18 microsatellite markers. Moreover, the Mascaruna goats were genotyped at casein loci using several molecular techniques. Based on the genetic structure at casein genes, the Mascaruna goat was similar to most goat breeds from the Mediterranean area, which are characterized by the predominance of strong alleles. The low value of genetic differentiation amo…

Settore AGR/17 - Zootecnica Generale E Miglioramento GeneticoLocal goat population genetic characterization microsatellite markers casein gene clusterAfrican Journal of Biotechnology
researchProduct

Genetic variability of Girgentana goat breed using molecular markers

2014

Assessing genetic diversity of local breeds through the information provided by neutral molecular markers, allows determination of their extinction risk and to design strategies for their management and conservation. The aim of this work was to quantify the levels of genetic variability in Girgentana goat breed using microsatellite markers and genetic polymorphisms at the casein genes. A total of 264 individuals were genotyped for 20 microsatellites, selected as suggested by ISAG and FAO. Moreover, the same individuals were characterized for the casein loci (CSN1S1, CSN2, CSN1S2, and CSN3) using PCR and sequencing protocols. Several genetic diversity indexes were estimated. A total of 130 a…

Settore AGR/17 - Zootecnica Generale E Miglioramento GeneticoCasein genes microsatellite markers Girgentana goat
researchProduct